21-30 September, 2025

Rainfall

Recent rainfall anomalies

Wetter Than Normal Conditions (Green and Light Green)

  • Much Wetter than Normal (Dark Green): Concentrated heavily over the northern parts of the region including Sudan, South Sudan, parts of Eritrea, pockets in the northern parts of Ethiopia, Djibouti and northern Somalia.
  • Wetter than Normal (Light Green): Forms a wide band surrounding the darkest green area, covering most of countries highlighted above.

Near Normal Conditions (Light Blue)

  • Near Normal: Predominantly observed in large parts of Uganda, South Sudan, Ethiopia, Somalia, Eritrea, and Sudan.

Drier Than Normal Conditions (Yellow and Orange)

  • Drier than Normal (Yellow) and Much Drier than Normal (Orange): These conditions dominate the eastern and southern parts of the region.
    • Significant drier areas cover most of southeastern Ethiopia, Somalia, Kenya, Tanzania.
    • The orange ('Much drier than normal') is evident in isolated patches across most of the countries highlighted.

No Rain (White)

  • No Rain: Indicated in the very northern and eastern dry areas, particularly along the coast of Eritrea, Sudan, parts Somalia, and much of Kenya and Tanzania.
Recent rainfall totals

High Rainfall Accumulation (Dark Green to Light Green)

  • Highest Rainfall (201–300 mm and 101–200 mm): These values are extremely high for a 10-day period. The dark green (201–300 mm) was observed in isolated pockets within the central region of Ethiopia.
  • Significant Rainfall (51–100 mm and 26–50 mm): These categories cover vast areas, forming a wide, central-to-western band across the region, including:
    • A few pockets in Eritrea, Djibouti and Somalia
    • Most of southern Sudan and South Sudan.
    • Large sections of Ethiopia (especially the western highlands).
    • Western Kenya, Uganda, Rwanda, Burundi and a few pockets in Tanzania.

Moderate to Low Rainfall (Yellow and Orange)

  • Low Rainfall (11–25 mm and 6–10 mm): These values typically ring the high-rainfall areas and transition into the driest zones. They are concentrated over:
    • All countries in the GHA region.

Very Low or No Rain (Light Grey and White)

  • Very Low Rainfall (1–5 mm): Forms a major transitional zone across northern Sudan, parts of Eritrea, Ethiopia, much of Somalia, central Kenya, and most parts of Tanzania.
  • Negligible/No Rain (<1 mm or No Data): These dry conditions dominate the Sudan, parts of Eritrea, eastern half of Somalia, and several parts of Kenya and Tanzania.

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Showing 494 results
Recent rainfall totals
Recent rainfall totals
  • Heavy to moderate rainfall between 100 - 200 mm observed over highlands of western Kenya, and isolated parts in southern and western Tanzania.
  • Heavy to moderate rainfall between 50 -100 mm observed in western and …
21 - 31 March 2022 Read More
Recent rainfall totals
Recent rainfall totals
  • Heavy to moderate rainfall between 50 - 200 mm observed in south-western parts of Tanzania and in isolated parts of central Tanzania.
  • Light rainfall between 25 - 50 mm observed in isolated parts of the …
11 - 20 March 2022 Read More
Standardized Precipitation Index
Standardized Precipitation Index
  • Moderately to severely wetter than usual conditions observed in western South Sudan, isolated parts of north-west Ethiopia, and in south-western parts of Tanzania and isolated parts of central Tanzania.
  • Normal rainfall conditions observed over several …
11 - 20 March 2022 Read More
Recent rainfall anomalies
Recent rainfall anomalies
  • Wetter than usual conditions observed in western parts of South Sudan, in isolated parts of central Tanzania and over south-western Tanzania, and in a few isolated parts of north-west Ethiopia.
  • Normal rainfall conditions observed in …
11 - 20 March 2022 Read More
Recent rainfall totals
Recent rainfall totals
  • Heavy rainfall (between 101 - 200 mm) observed in southern Tanzania.
  • Heavy to moderate rainfall (between 51 - 100 mm) observed in western Burundi, and south-western and southern Tanzania.
  • Light rainfall between (26 - 50 …
1 - 10 March 2022 Read More
Standardized Precipitation Index
Standardized Precipitation Index
  • Moderately to severely wetter than normal conditions observed in south-western parts of South Sudan, and isolated parts in western Ethiopia.
  • Normal rainfall conditions observed in southern parts of Eritrea, Djibouti, south-eastern and north-western Ethiopia, central …
1 - 10 March 2022 Read More
Recent rainfall anomalies
Recent rainfall anomalies
  • Much Wetter than normal conditions observed over south-western South Sudan, and isolated parts of Ethiopia.
  • Wetter than normal conditions observed over isolated parts of Tanzania.
  • Normal rainfall conditions observed in most of Rwanda, northern Burundi, …
1 - 10 March 2022 Read More
Recent rainfall anomalies
Recent rainfall anomalies
  • Wetter than normal conditions observed over most of Tanzania, central and eastern Rwanda, eastern Burundi, most of southern Kenya, south-eastern Uganda, and south-western Ethiopia.
  • Normal rainfall conditions observed in most of western Uganda, western Burundi, …
21 - 28 February 2022 Read More
Recent rainfall totals
Recent rainfall totals
  • Heavy to moderate rainfall (between 50 - 100 mm) observed in western parts of Kenya, eastern Burundi, and in central, south-western, and southern Tanzania.
  • Light rainfall between (25 - 50 mm) observed in south-western Ethiopia, …
21 - 28 February 2022 Read More
Standardized Precipitation Index
Standardized Precipitation Index
  • Moderately to severely wetter than normal conditions observed in most of Tanzania, eastern Rwanda, north-eastern Burundi, central and south-eastern Uganda, western and southern Kenya, and in south-western Ethiopia.
  • Normal rainfall conditions observed in several parts …
21 - 28 February 2022 Read More
Standardized Precipitation Index
Standardized Precipitation Index
  • Moderate to severely wetter than normal conditions were not observed in Rwanda, central and southern parts of Uganda, western Kenya, northern Burundi; and north-west, north, central and southern parts of Tanzania.
  • Normal rainfall conditions were …
11 - 20 February 2022 Read More
Recent rainfall totals
Recent rainfall totals
  • Heavy to very heavy rainfall between 100 - 300mm was observed in the southern parts of Tanzania.
  • Heavy to moderate rainfall between 50 - 100 mm was observed in north-western Rwanda, south-western parts of Kenya; …
11 - 20 February 2022 Read More
Recent rainfall anomalies
Recent rainfall anomalies
  • Wetter than normal to much wetter than normal conditions were observed in central and southern Uganda, western Kenya, much of Rwanda, northern and central Burundi; and in much of north, central, eastern and southern Tanzania. …
11 - 20 February 2022 Read More
Recent rainfall anomalies
Recent rainfall anomalies
  • Wetter to much wetter than usual conditions were observed in south-western Uganda, northern Rwanda, parts of western Kenya, and northern, eastern, and southern Tanzania.
  • Usual rainfall conditions were observed over most of Sudan, Somalia, South …
1 - 10 February 2022 Read More
Recent rainfall totals
Recent rainfall totals
  • Moderate to heavy rainfall (between 200 - 300 mm) was not recorded in the region.
  • Moderate rainfall (between 100 - 200 mm) was recorded in southern parts of Tanzania.
  • Light rainfall (between 10 - 100 …
1 - 10 February 2022 Read More